Mountain marathon on historic Alpine Loop jeep roads
Other trail races within 61 miles
A 26.8-mile loop on the Alpine Loop jeep roads of the San Juan Mountains. Starting at Silverton Memorial Park (9,318 ft), runners head straight into the mountains via Howardsville, Eureka, and Animas Forks before climbing to California Pass at 12,926 feet, then looping back through Gladstone and Niagara Gulch. Slightly shorter than the 50K by skipping the initial out-and-back, but covering the same spectacular core loop.
Some ultra experience recommended
Silverton, CO, United StatesJuly 18, 2026
Silverton Alpine Marathons Marathon is a loop trail race in Silverton, CO, United States, held on July 18, 2026. The course covers 26.8 miles, climbs 3,910 ft, and has a 10h cutoff.
| Location | Mile | Elevation | Cutoff | Crew | Drop bags |
|---|---|---|---|---|---|
Start Start | 0.0 | 9,344 ft | — | Crew | |
Howardsville Aid Station | 4.3 | 9,682 ft | — | ||
Eureka Aid Station | 7.8 | 9,859 ft | — | ||
Animas Forks Aid Station | 12.3 | 11,161 ft | — | ||
California Pass Aid Station | 16.1 | 12,897 ft | 7h30m2:30 PM | ||
Gladstone Aid Station | 20.2 | 10,564 ft | 9h4:00 PM | ||
Niagara Gulch Checkpoint | 24.6 | 9,754 ft | — | ||
Finish Finish | 26.8 | 9,344 ft | 10h5:00 PM | Crew | Drop Bags |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Course peaks at California Pass (12,926 ft) with extended running above 11,000 ft
Afternoon thunderstorms common on exposed Alpine Loop ridgelines in July
No required gear specified
No recommended gear specified
No reviews for this event yet. Be the first to share your experience!
